What is meant by physical and chemical method
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physical method is a temporary method which can be reversed and chemical method is a permanent method which is irreversible
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A change in which only the physical property of the substance get changed and no new substance format is called a physical change
A change in which composition and chemical properties of the substance get changed is called a chemical change
A change in which composition and chemical properties of the substance get changed is called a chemical change
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physical changes are those changes which are temporar,reversible and no new substance is formed in physical change
in chemical change a new substance is formed.it is irreversible and permanent in nature
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